This topic explains how to install the necessary prerequisites
for all Microsoft Exchange Server 2007 Service
Pack 1 (SP1) server roles on Windows Server 2008 or
Windows Vista.

If you are deploying a new Exchange organization, and you are
preparing your Active Directory schema and domain(s) by using
a computer running Windows Server 2008, you must first
install the Active Directory Domain Services remote
management tools on Windows Server 2008 prior to
preparing the schema or a domain by using the following
command:

Copy Code

ServerManagerCmd -i RSAT-ADDS

Note:

You may need to restart the computer after installing the
Active Directory Domain Services remote management tools. You
will be notified at the end of the installation process if a system
restart is required.

If Internet Information Services (IIS) components are missing
when you install Exchange 2007 SP1, you may experience one or
more of the following symptoms in your Exchange organization:

Users cannot log on to their Exchange mailboxes by using
Office Outlook Web Access. In this scenario, when a
user specifies a URL such as
http://<ClientAccessServerName>/Exchange to
access a mailbox and then enters the correct credentials, the
user receives the following error message:

The user name or password that you entered is not valid. Try
entering it again.

In this scenario, the Exchange Client Access server does not
successfully redirect the /Exchange request to the
/OWA virtual directory.

If you try to access the /Exchange virtual directory
from the Windows 2008-based computer or by using Internet Explorer,
you receive one of the following error messages:

HTTP Error 401.2 - Unauthorized

You are not authorized to view this page due to invalid
authentication headers.

HTTP Error 500.21 - Internal Server Error

Handler "AboMapperCustom-31169" has a bad module "IsapiModule"
in its module list.

Before You Begin

To perform these procedures, the account you use must
be delegated membership in the local Administrators group. For more
information about permissions, delegating roles, and the rights
that are required to administer Exchange 2007, see Permission
Considerations.

The full installation option of
Windows Server 2008 must be used for all
Exchange 2007 SP1 servers and management workstations. The
Server Core installation option of Windows Server 2008 is
not supported for use by Exchange 2007 SP1.

For all server roles other than the Edge Transport
server role, you must first join the computer to the appropriate
internal Active Directory forest and domain.

When installing the prerequisites for Client Access
servers, installation of the RPC over HTTP proxy component is
needed only if you plan to enable Outlook Anywhere in your
environment.

In each of the procedures below, the steps must be
followed in order. It is especially important that the
Active Directory Domain Services remote management tools
be installed prior to installing any Internet Information Services
(IIS) prerequisites.

When installing any server role, the
Exchange Management Tools role is also installed. To use the
Exchange management tools (the Exchange Management Console or the
Exchange Management Shell) to manage all internal server roles
(Client Access, Mailbox, Hub Transport, and Unified Messaging) you
must also install the prerequisites for the
Exchange management tools. For example, on a server that has
only the Hub Transport server role installed, you must also install
the following IIS components that are required for a management
tools installation:

Without these IIS components, you would not be able to
manage the Client Access server role from the server that has only
the Hub Transport server role installed.

Before you can install Exchange 2007 SP1 on
Windows Server 2008 and create a clustered mailbox
server, you must also install the Windows Server 2008
Failover Clustering feature. For detailed steps to install the
prerequisites for the Mailbox server role and the Failover
Clustering feature, see "To install the Windows Server 2008
operating system prerequisites for Mailbox servers" later in this
topic.

Procedure

To install the Windows Server
2008 operating system prerequisites for Client Access servers

Open a Command Prompt window.

Install Windows PowerShell, which is included in
Windows Server 2008 (but not installed by default) by
running the following command:

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ServerManagerCmd -i PowerShell

Install the necessary IIS prerequisites by running the
following commands in the order in which they are listed:

For More Information

Windows Server 2008 includes several features
that have been enhanced or renamed. For information about the
feature name changes between Windows Server 2003 and
Windows Server 2008, see Terminology
Changes.